Last month, Community Health Systems, Inc. announced Thomas J. Aaron has been appointed executive vice president and chief financial officer. Aaron joined CHS in November 2016, following a 32-year career at Deloitte & Touche LLP, where he led teams for many of the firm's largest national healthcare provider and payer clients including CHS. Aaron succeeds W. Larry Cash, who retired May 16, 2017, after 20 years of service as the company's CFO.